Hi, Pardon me if it is not the right forum to ask the below question. I am trying to build the boost library for mipsel-linux. I followed the following procedure. 1. Changed user-config.jam a. using gcc : mipsel : mipsel-linux-g++ ; 2. Then called bjam as: ./bjam --toolset=gcc-mipsel When I do this I am getting the following error. /******/ gcc.compile.c++ bin.v2/libs/math/build/gcc-mipsel/release/threading-multi/cyl_bessel_i.o /tmp/ccgLCiZn.s: Assembler messages: /tmp/ccgLCiZn.s:14975: Error: opcode not supported on this processor: mips1 (mips1) `ll $3,4($4)' /tmp/ccgLCiZn.s:14977: Error: opcode not supported on this processor: mips1 (mips1) `sc $5,4($4)' /tmp/ccgLCiZn.s:15063: Error: opcode not supported on this processor: mips1 (mips1) `ll $3,8($4)' /tmp/ccgLCiZn.s:15065: Error: opcode not supported on this processor: mips1 (mips1) `sc $10,8($4)' /tmp/ccgLCiZn.s:15105: Error: opcode not supported on this processor: mips1 (mips1) `ll $3,4($4)' And so on /******/ Can someone help me on where I am going wrong? Regards, Alap ________________________________ This Email may contain confidential or privileged information for the intended recipient (s) If you are not the intended recipient, please do not use or disseminate the information, notify the sender and delete it from your system. ______________________________________________________________________